RU Admission Test 2019-2020 (Unit-C, Group-1)

1. How many 2-input NAND gates are needed to create a 2-input OR gate?

2. Vertex of the parabola $x^{2}+4 x+4 y=0$ is-

3. Using which enzyme a specific portion of plasmid is cut?

4. If imaginary cubic root of 1 is $\omega$ then value of $1+\omega^{2}+\omega^{4}+\cdots+\omega^{16}$ will be-

5. Value of $\lim _{x \rightarrow 0} \frac{1-\cos x}{x^{2}}$.